CN108291680B - Pipe and the sealing device across the column of the pipe and the method for installing it - Google Patents
Pipe and the sealing device across the column of the pipe and the method for installing it Download PDFInfo
- Publication number
- CN108291680B CN108291680B CN201680067218.6A CN201680067218A CN108291680B CN 108291680 B CN108291680 B CN 108291680B CN 201680067218 A CN201680067218 A CN 201680067218A CN 108291680 B CN108291680 B CN 108291680B
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- Prior art keywords
- pipe
- edge
- axis
- column
- sealing device
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
- F16L37/086—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of latching members pushed radially by spring-like elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/10—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using a rotary external sleeve or ring on one part
- F16L37/101—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using a rotary external sleeve or ring on one part in which the coupling is coaxial with the pipe
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
- G21C17/112—Measuring temperature
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/02—Details of handling arrangements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- High Energy & Nuclear Physics (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The present invention relates to sealing device (30), it is intended to fix against the edge of pipe and against column.According to the present invention, its ontology (3060) includes: guide portion (3030), it is distributed between the outside (3062) that the inside (3064) opened in cavity (316) is opened with opposite concentric clamping ring (305) around cavity (316), which is mounted to rotate around axis (A)；The integral finger portion (303) with the outer actuating component (3031) that is guided in guide portion (3030)；Ring (305), with activation zone (3051), its energy abutment member (3031) is positioned protrude into finger portion (303) in cavity (316) by sliding, to which when ring (305) and base portion (306) are in the first relatively rotation place, against the edge of pipe, clamping refers to portion (303), ring (305) and base portion (306) can be by changing between the first location and the second location around axis (A) rotation, wherein area (3051) are spaced apart to allow finger portion (303) to return in ontology (3060) with component (3031).
Description
Technical field
The present invention relates to a kind of sealing device and a kind of method for installing the device, the sealing device be intended to against
The end edge of pipe and against needing to be fixed across the column of pipe.
Background technique
A field of the invention is in particular to arranged in (such as nuclear reaction of nuclear power station of pressure (hydraulic) water reactor vessel
Device) covering pipe on thermocouple pile, these thermocouples need to measure inside it by entering column inside container
Temperature.
Document JP-A-10062583 describes a kind of sealing device comprising there are three the vertical for clamping of cam for tool
The base portion of thermocouple pile, the base portion include two fixed cams and removable by rotating the horizontal outer bolt that is screwed in base portion
Dynamic cam.One of the known devices is the disadvantage is that it causes clamping against the clamping of fixed cam execution movable cam
Asymmetry has the risk blocked to cause to be applied to the power asymmetry on sealing element.The further drawback of the device is
User must be noted that avoid cam around column run-off the straight.The further drawback of the device is that user needs the plenty of time to twist
Tight bolt so as to clamping column, this be for personnel have the environment strictly limited such as nuclear power station it is unfavorable, in the environment
Interior personnel can suffer from ionising radiation.
Document JP-A-10062584 describes a kind of sealing device comprising there are three the vertical for clamping of cam for tool
The base portion of thermocouple pile, the base portion include a fixed cam and can be solid by making around two vertical axis for being fixed to base portion
Two cams of fixed two handles rotation to them and movement.One of the known devices is the disadvantage is that it holds against fixed cam
The clamping of row movable cam causes the asymmetry clamped to have to cause to be applied to the power asymmetry on sealing element
The risk blocked.The further drawback of the device is that user must be noted that avoid cam around column run-off the straight.The device it is another
One can make each rotation in handle the disadvantage is that user must repeatedly apply sizable power, this has stringent limitation to personnel
Environment such as nuclear power station for be it is unfavorable, personnel can suffer from ionising radiation in the environment.
Document JP-A-10048383 describes a kind of sealing device comprising is used to clamp vertical thermoelectricity with cam
The base portion of even column, these cams, which pass through, makes the two handles rotation for being fixed to them around two horizontal axis for being fixed to base portion
And it moves.The device has the shortcomings that be similar to pointed by the device known to the document JP-A-10062584 above.
Summary of the invention
The present invention is directed to obtain the sealing device and its installation method of the shortcomings that mitigating the prior art.
For this purpose, the first theme of the invention is a kind of sealing device, it is intended to against the end edge of pipe and against column
Fixed, the column must pass through the opening by the fringe enclosing in the pipe along the axis of the column, and described device includes:
Base portion, have for the column axially through feed through part；First containment member can be activated to be pressed against in the feedback
The column in logical portion；Ontology, around the axis around the cavity for receiving the edge of the pipe；And second sealing
Component, the edge for the pipe for being intended to be pressed against in the cavity, the feed through part are connected to the cavity along axial,
It is characterized in that, described device further includes clamping ring, and the ontology includes multiple guide portions, they surround institute
Cavity distribution is stated, and is extended between the outside that the inside opened into the cavity is opened with opposite concentric clamping ring, institute
It states concentric clamping ring and is rotatably mounted relative to the base portion around the axis,
Multiple inner fingers, integral with multiple outer actuating components, the multiple outer actuating component surrounds the chamber respectively
Body is guided in the multiple guide portion, and the ring includes multiple activation zones, and the multiple activation zone is separated from each other, and energy
The multiple outer actuating component positioning is enough born against, to cause the inner finger to slide and protrude into the cavity, in institute
State ring and when the base portion is in referred to as the first relatively rotation place of the first tube edges clamped position relative to each other, against
The edge of the pipe clamps the finger portion,
The ring and the base portion can be by rotating relative to each other around the axis in the described first opposite rotation
Indexing set and the second relatively rotation place in one and another between change, second relatively rotation place be referred to as manage
Edge released position, multiple activation zones described herein are separated by a certain distance with the multiple outer actuating component, described in allowing
Finger portion is retracted into the ontology.
Have benefited from the present invention, the intervention time that clamping reliability and personnel implement fixed device is improved, this is to personnel
Have and be particularly advantageous for the environment strictly limited such as nuclear power station, personnel can suffer from ionization spoke in the environment
It penetrates.Therefore, the present invention allows to support uniformly and at substantially the same time by the single rotation manipulation from the second position to first position
Tube clamps all finger portions, to avoid any block or incorrect positioning.
According to one embodiment of present invention, the multiple guide portion is radially extended relative to axis, for relative to
Axis, which radially guides, refers to portion.
According to one embodiment of present invention, base portion and/or ontology and at least first in command are integral, and the ring with extremely
Few second handle is integral.
According to one embodiment of present invention, base portion includes the first relative rotation for ring and ontology to be locked in them
The locking piece of position, the locking piece are connected to manual actuator part, which allows locking piece to be unlocked, to allow
The second relatively rotation place is varied to from the first relatively rotation place.
According to one embodiment of present invention, the multiple activation zone respectively includes multiple portions of the inner surface of the ring
Point, the multiple part is separated from each other by multiple recess portions of the inner surface around the axis, described in the multiple recess portion ratio
The part of inner surface is further from axis, and described in the multiple recess portion is respectively used to receive in second relatively rotation place
Multiple outer actuating components.
According to one embodiment of present invention, each recess portion has the first inclined-plane, starts from the institute of the inner surface of the ring
Part is stated, and extends outwardly away from the axis until the bottom of the recess portion, to be retracted into first relatively rotation place
First position in the guide portion and one in the second position in the bottom is protruded into second relatively rotation place
It is a with the outer actuating component is guided between another.
According to one embodiment of present invention, each outer actuating component includes cam, the cam there is steering ring and edge with
The second inclined-plane that the identical direction in first inclined-plane rises.
According to one embodiment of present invention, each guide portion includes for actuating component outside bias with mobile towards ring
Biased element.
According to one embodiment of present invention, which includes the first dynamic sealing, and first dynamic is close
Sealing abuts feed through part, and can be injected and fluid expands and be activated by the end via base portion, so that first is close
A part of sealing is pressed against the column in feed through part.
According to one embodiment of present invention, sealing element includes mobile transmission apparatus, in ring and base portion from the second phase
When varying to the first relatively rotation place to rotation position, the second containment member is made to be pressed against the edge of pipe.
According to one embodiment of present invention, second containment member includes second seal, the second seal
The first surface at the edge of the pipe is turned to along the first direction of the axis, the mobile transmission apparatus wraps in each finger portion
The second support surface of the second surface for abutting the edge is included, the second surface divides along axial with the first surface
It opens, second support surface rises along second direction opposite to the first direction, and extends from Inside To Outside, with
In the finger portion, outside-in sliding is when the first tube edges clamped position in the cavity, towards first table
Face presses the second seal.
According to one embodiment of present invention, at least three finger portions are provided, in the first tube edges clamped position, it is therein extremely
Few two finger portions around axis location in the one 180 ° of angle sector, and wherein at least another be located in it is mutual with the first sector
In the 2nd 180 ° of angle sector mended.
According to one embodiment of present invention, sealing device includes the removable immobilising device of at least one plug, with
Do not have to block the feed through part in the case where column in feed through part.
Second theme of the invention is a kind of end edge for against pipe and as described above close against column installation
The method of seal apparatus, the column must pass through the opening gone out in the pipe by the fringe enclosing along the axis of the column, described
Sealing device includes mobile transmission apparatus, for varying to the first phase from the second relatively rotation place in the ring and the base portion
When to rotation position, second containment member is made to be pressed against the edge of the pipe, on the edge to clamp against the pipe, Yi Zhongfang
Method, wherein the ring and the base portion surround the axis relative to each other and rotate to institute from second relatively rotation place
The first relatively rotation place is stated, the base portion is clamped against on the edge (281) of the pipe, and seals structure for described second
Part is pressed against on the edge of the pipe, then enables first containment member, it is pressed against in the feed through part
The column on.
Detailed description of the invention
By read only by way of non-limiting example and referring to attached drawing provide it is described below be better understood with the present invention,
In attached drawing:
- Fig. 1 schematically shows nuclear power station, wherein sealing device according to the present invention and its installation side may be implemented
Method,
- Fig. 2 is can to realize root on it according to the schematic cross section of the container of the reactor of the nuclear power station of Fig. 1
According to sealing device of the invention,
- Fig. 3 is the perspective schematic view viewed from above of sealing device according to an embodiment of the invention,
- Fig. 4 is the perspective schematic view of sealing device according to an embodiment of the invention observed from below,
- Fig. 5 is the schematic axial section of sealing device according to an embodiment of the invention,
- Fig. 6 be sealing device according to the present invention be in pipe the first clamped position when the schematic diagram that observes from below,
- Fig. 7 be sealing device according to the present invention be in pipe the second released position when the schematic diagram that observes from below,
- Fig. 8 is the signal of the pivottable mode viewed from above of sealing device according to an embodiment of the invention
Figure, wherein its opening is clogged by plate,
- Fig. 9 schematically shows the example that can fix the flange of sealing device according to the present invention with vertical section,
Specific embodiment
Describing first referring to Fig. 1 and Fig. 2 can be using sealing device according to the present invention and according to the present invention
Installation method a kind of scene.Certainly, present invention could apply to different scenes.
Fig. 1 shows nuclear power station.Thermal energy is by being formed by nuclear reactor by water (16) cooling fission fuel (2)
(6) it generates, all is all placed in container (1).Fig. 2 shows fission fuel element (5).Generated hot water (7) passes through
Sealing plane (10) on it is stood with very for covering (3) especially relative to container (1) relative to reactor
Hundreds of inverted U-shape loops (9) of big height (H) pass through steam generator (8).The heat of loop will make secondary loop (11)
Water reach vapor state (13), by actuating turbine machine (14), turbine itself driven generator (15) generates electric power for this.
Pipe (28) is soldered to covering (3).Thermocouple pile (27) are penetrated in pipe (28), are passed through in the inside of pipe (28)
Covering (3).
In use, it is important that more precisely being succeeded in reaching an agreement by the temperature of the monitoring especially fuel assembly (5) of core (2)
The temperature of its water (16) of monitoring cooling is crossed, to control the power of reactor (6).For this purpose, being located on core as shown in Figure 2
Be referred to as top instrument interior instrument (17) allow by thermocouple (26) moveable at the top of core progress power control
System and temperature measurement.These thermocouples (26) are in the column for passing through covering (3) and the pipe (28) by passing through covering (3) is kept
(27) it is guided in, the pipe (28) is in the exterior section of covering (3) (that is, in the closure member (18) of reactor building
In) expose when be soldered to covering (3).
The water of reactor ensures column (27) during operation and manages the sealing between (28) under 155 bar pressures
Be it is essential, certain sealing systems (referred to below as Special seal system and be not shown) are pre-installed in for this purpose
On column (27) and pipe (28), for being sealed between them during reactor is run.When reactor is closed, covering
(3) it is removed, mechanically forces to remove column (27) and manages these Special seal systems between (28).
However, referred to as vacuumizing for major loop is needed covering (3) temporarily with the certain maintenance operation filled the water to it
In resetting on the container (1).Because thermocouple pile (27) has been stripped its Special seal system in this case, must be again
Sealing function is provided.Must sealing be provided between column (27) and pipe (28) or flange (40) again.It is closed when in order to vacuumize
When closing reactor, the pressure of core is in atmospheric pressure compared with 155 bars during operation, and sealing function is usually by another close
Seal apparatus provides, rather than is provided by Special seal system.In fact, the component of Special seal system is sensitive to manipulation, and
Force additional dosimetry.But the interim solution is simultaneously unsatisfactory.This leads to generally unfavorable operation；First
It is thus about cost, and therefore unnecessarily to increase personal and collective personnel dosimetry about the duration, although protecting
It holds in the authorization limitation for the work for being exposed to radiation.
It is solving the problems, such as through the invention first is that nuclear power station major loop vacuumize test during implement container
Covering (3) improves this situation.Sealing device according to the present invention allows in the unloaded situation of core of nuclear power station
Vacuumizing during (MSV) is tested for major loop provides the sealing function of thermocouple pile.The solution is suitable for for different
When reason inevitably uses true covering (covering (3) used during reactor operation) to be vacuumized, such as
When can not obtain false covering in another embodiment vacuumized.It is close present invention improves what is realized around thermocouple pile (27)
Seal and make the sealed reliable, and the synthesis by eliminating human intervention and valuableness in bottom of pond near the covering of container
Collective's dosimetry simplifies intercalation model.
The principle of the process for vacuumizing (hereinafter referred to as MSV) is looked back below, and is vacuumized according to the prior art
Period fills the sealing function of the thermocouple pile (27) in the test case neutralization operation of major loop.
Once reactor is closed, covering (3) is just removed from container (1), and is placed on one side.Fuel (5) is unloaded
It carries.
Before loading new core, it is necessary to fill major loop, and not leave air capacity inside it.Under atmospheric pressure
During filling reactor loop, due to the height (H) for separating the top (19) of container sealing plane (10) and loop (9), water
The hydrostatic equilibrium of position does not allow more than the height of container sealing plane (10).
In order to complete filling and with the upper part of water filling loop, so that discharge is driven to be trapped in the air of there,
And it executes and vacuumizes (MSV) operation.
This method implemented on false covering is described in detail in document FR-A -2 921 510.This method is suitable for
" true covering " (3).
(MSV) method is vacuumized to include the following steps.
After closing reactor and major loop pressure be reset to atmospheric pressure,
According to prior art practice, covering (3) is removed, and the Special seal system of device (27,28) is replaced by use
In the lid for protecting female flange (40).
Core is unloaded, and major loop is drained the stopping maintaining nuclear power station unit.
After the completion of maintenance, it is necessary to fill major loop.
Pass through silicone covering (3) being deposited on the container sealing plane (10) for sealing major loop under atmospheric pressure
It is placed on sealing element covering (3), temporary sealing system is installed around thermocouple pile (27), and is established and reached in major loop
To the vacuum of about 300mb；This decompression increases the sealing effect at silicone seal.
Major loop is filled to highest possible water level in the loop, but can leave air pocket (filling step).
Then bleed outlet is opened with breaking vacuum, this causes water to recycle towards the top of loop；Under water level in container
Drop.Pressure recovery is to atmospheric pressure.
By partial discharge until container sealing plane (10), temporary sealing system is removed water, then places protection again
Lid.Container sealing plane is located near the bottom level in pond.
Covering (3) is removed, and continues to fill container.
Load core.
Covering (3) are placed again and are bolted to container.
Protection cap is removed, then places the typical seal for operation again.
These steps in MSV can force to be sealed thermocouple pile.As shown in Fig. 2, water filling step causes with water
Fill the entirety and its covering (3) of container (1)；The confession that the water energy enough penetrates into covering is soldered to the pipe of covering (3)
(28) from the feed through part wherein exposed.During installation or removal covering (3), column slide-in pipe (28) is interior to be reached to a certain degree, this
The sealing that upper part is set is ensured after taking out all other device.
Sealing device according to the present invention is described referring to Fig. 3 to Fig. 8.
Sealing device 30 according to the present invention is intended to be attached against the end edge 281 of pipe 28 and against column 27.Column 27
The opening 285 of pipe 28 must be passed through along the axis A of column 27, which is defined by the edge 281.For example, column 27 is with outer
Portion's cylindrical surface, may be cylindrical around axis A.Column 27 can be the survey for allowing will to be used to measure one or more parameters
Measuring appratus (is holding in above-mentioned application example from the space that the end edge 281 of pipe 28 penetrates at the other end of pipe 28
The inside of device 1) in any column, such as by such as one or more temperature of one or more thermocouple measurements, or
Other parameters.
Sealing device 30 includes base portion 306, which has the feed through part 3061 passed through for column 27 along axis A.Sealing dress
Setting 30 further includes the first containment member 310, for providing sealing against column 27 in feed through part 3061.According to one embodiment,
First containment member 310 can be activated, to be pressed against column 27 in feed through part 3061.When the first containment member 310 is not activated
When, column 27 can slide in feed through part 3061 along axis A.
Sealing device 30 further includes ontology 3060, and body about axis A is around cavity 316, and the cavity 316 is for connecing
The edge 281 of closed tube 28.Sealing device 30 further includes the second containment member 304, is intended for being pressed against pipe 28 in cavity 316
Edge 281.Feed through part 3061 is connect along the direction for being parallel to axis A extension with cavity 316.Feed through part 3061, which has, is less than chamber
The lateral dimension (such as trans D) of the lateral dimension (such as trans D) of body 316, transverse direction is relative to passing through the cross
It is obtained to the axis A in direction, such as it is perpendicular to axis A.
According to the present invention, ontology 3060 includes the ring 305 being rotatably mounted around ontology 3060, which is used for will
The multiple finger portions 303 being guided in guide portion 3030 concentrically clamp against on the edge 281 of pipe 28.Ontology 3060 includes multiple
Guide portion 3030, around cavity 316 be distributed, and the inside 3064 of ontology 3060 opened into cavity 316 with it is opposite
Ring 305 extends between open outside 3062.Ring 305 is rotatably mounted relative to base portion 306 around axis A.Ring 305 is surround
Ontology 3060, and therefore it is located at the outside of the ontology 3060.For example, ring 305 is with annular shape.For example, ring 305 is rotatable
Ground is mounted in the periphery recess portion 3066 of ontology 3060, and the periphery recess portion 3066 is by the upper wall that is separated from each other along axis A
3067a and lower wall 3067b are defined.For example, ring 305 can be made in the form of two semi-rings around axis A.
Hereinafter, the direction that outside-in is advanced is the direction close to axis A or column 27 or cavity 316.
Multiple inner fingers 303 are provided with, it is integral with multiple outer actuating components 3031 respectively.Multiple outer actuating components
3031 are guided in multiple guide portions 3030 around cavity 316 respectively.Ring 305 includes multiple separated activation zones
3051, the activation zone 3051 can bear against multiple outer actuating components 3031 and position, to cause finger portion 303 to slide and stretch
Enter in cavity 316, in ring 305 and base portion 306 relative to each other in being referred to as the of 28 edge of the first pipe, 281 clamped position
When one relatively rotation place, finger portion 303 is clamped against the edge of pipe 28 281, as shown in Figure 6.
Ring 305 and base portion 306 can be by rotating relative to each other around axis A in the first relatively rotation place and the
One in two relatively rotation places (referred to as 28 edge of pipe, 281 released position) and another between change.Shown in Fig. 7
In second relatively rotation place, multiple activation zones 3051 are separated by a certain distance with multiple outer actuating components 3031, to allow to refer to
Portion 303 is retracted into ontology 3060.In second released position, sealing device 30 can around column 27 and edge 281 sliding or
It is removed from them.
Therefore, ring 305 is the concentric ring 305 for clamping the portion that refers to against the edge of pipe 28 281.Therefore, by surrounding column
27 execute single spinning movement, and ring 305 allows to ensure that clamping force is uniformly distributed around pipe 28.Therefore, the present invention allows to save close
The reliability of the manipulation of seal apparatus 30 and set-up time and the reliability for allowing to clamp and sealing.
For example, ontology 3060 can have the generally annular shape around axis A and cavity 316.Base portion 306 for example including
It defines feed through part 3061 and is connect with ontology 3060 or upper part 3063 fixed or at single-piece.Upper part 3063 is for example
It can have around axis A and surround the annular shape of feed through part 3061.Upper part 3063 can for example pass through the first covering
Plate is formed, and is fixed on the second plate to form ontology 3060, these plates extend transversely with and for example perpendicular to axis A.
In the embodiment shown in the figures, the inside 3064 of ontology 3060 is cylindrical around axis A, such as around axis A
It is cylindrical.The outside 3062 of ontology 3060 is for example cylindrical around axis A, such as cylindrical around axis A.305, ring
It is such as cylindrical such as cylindrical around axis A around axis A.
Guide portion 3030 is arranged as ensuring relative to axis A outside-in (that is, making finger portion 303 is close for example should
Axis A) and opposite direction guide their finger portions 303 accordingly.In Fig. 6 and embodiment shown in Fig. 7, guide portion 303
It is straight.Certainly, in other unshowned embodiments, guide portion 303 can be curved.According to Fig. 6 and Fig. 7
Embodiment, multiple guide portions 3030 radially extend relative to axis A, refer to portion for radially guiding relative to axis A
303.Certainly, guide portion 3030 can not be radially extended relative to axis A, and can obliquely be extended.
It, can be below the low portion of ontology 3060, i.e., at it along the separate sealing of axis A according to the embodiment of Fig. 4
The beneath portions of component 310,304 are arranged ring 3065, define guide portion 3030, and the permission when ring 3037 is disassembled
Insertion refers to portion 303, actuating component 3031 and the component that them are fixed in guide portion 3030.Ring 3065 can be by can be removed
Immobilising device (such as passing through bolt 3038) or be fixed to by immovable immobilising device (such as by rivet 3038)
Ontology 3030.Lower wall 3067b and part 3065 is not shown in shown Fig. 6 and Fig. 7, to show present in the guide portion 3030
Element.
According to one embodiment, base portion 306 and/or ontology 3060 and at least one first in command 314 are integral, and ring
305 is integral at least one second handle 301.Therefore, handle 301 and 314 allows user to enclose ring 305 with base portion 306
It is pivotably movable with respect each other around axis A, so as to refer to portion 303 from one to another in the first clamped position and the second released position
It changes.For example, handle 301 is fixed to ring 305 by outer arm 3010.
According to one embodiment, base portion 306 includes for ring 305 and ontology 3060 to be locked in its first relative rotation position
The locking piece 307 set.Locking piece 307 is connected to manual actuator part 3070, such as the barrel button in covering locking piece 307
Form, which allows locking piece 307 to unlock, to allow to change from the first relatively rotation place to the second opposite rotation
Indexing is set.Therefore, locking piece 307 allows finger portion 303 to be locked in 28 edge of the first pipe, 281 clamped position.Locking piece 307 for example wraps
The first lock part 3071 is included, can be retracted into the hollow portion 3072 of outer arm 3010 that is ring 305 or being fixed to the ring, with
The ring 305 is locked in the first clamped position.Manual actuator part 3070 is configured to rise the first part of locking piece
3071, and it is removed from hollow portion 3072, to unlock locking piece 307.Preloading device can be set in locking piece
First part 3071 on, it is loaded towards ring 305 or towards arm 3010, so that the part 3071 is in the first clamped position
It is automatically engaged in hollow portion 3072.
According to one embodiment, multiple activation zones 3051 respectively include multiple first parts of the inner surface 3053 of ring 305
3052.These parts 3052 of the inner surface 3053 of ring 305 are separated from each other by multiple recess portions 3054 of the inner surface 3053.This
A little recess portions 3054 than the inner surface 3053 of ring 305 first part 3052 further from axis A, and be respectively used to multiple outer causes
Dynamic component 3031 is received in the second relatively rotation place (that is, in released position).
According to one embodiment, each recess portion 3054 has the first inclined-plane, which starts from the first adjacent part
3052, and axis A is moved away from until bottom 3055, with retraction induced in the first relatively rotation place (that is, clamped position)
In the bottom 3055 of the recess portion 3054 of first position and the second relatively rotation place (that is, second released position) in portion 3030
One in second prominent position and the outer actuating component 3031 of guidance between another.Therefore, when ring 305 is relative to ontology 3060
Or base portion 306 around axis A along first rotation clamping direction S1 rotation (i.e. from the second position to first position) when, each actuating
Component 3031 slides into first part from bottom 3055 against the second part 3056 for defining recess portion 3054 of inner surface 3053
3052, actuating component 3031 is limited, so that limitation is fixed to its finger portion 303, with inside from outside in guide portion 3030
Slideslip is to approach axis A, so that finger portion 303 be caused to extend beyond inside 3064 in cavity 316.When ring 305 is relative to this
When body 3060 or base portion 306 unclamp direction S2 (first direction S1's is reversed) rotation along rotation around axis A, each actuating component
3031 second part 3056 for defining recess portion 3054 against surface 3053 is freely sliding towards outside in guide portion 3030
It is dynamic, to change from first part 3052 to bottom 3055, and finger portion 303 is caused to slide into outside until this refers to portion from inside
303 no longer extend beyond inside 3064 in the second released position, and until no longer protruding into cavity 316.
According to one embodiment, each outer actuating component 3031 includes cam 3032, which has steering ring 305 and edge
The second inclined-plane that direction identical with the first inclined-plane rises.Therefore, cam 3032 can be along the second part for defining recess portion 3054
3056 the first inclined-plane sliding.Certainly, the first inclined-plane can be not identical as the second inclined-plane, as shown in Figure 6 and Figure 7.
According to one embodiment, each guide portion 3030 includes biased element 3033, for the outer actuating component 3031 of bias
With mobile towards ring 305 (that is, from Inside To Outside).Therefore the biased element 3033 is provided to limitation and refers to portion 303 from cavity
316 are moved to outside, and in other words, finger portion 303 is retracted into ontology 3030 by limitation.The biased element 3033 can by one or
More springs are formed.For example, outer actuating component 3031 is fixed to its corresponding finger portion 303 by bar 3034.Biased element
3033 can be set and be fixed between the abutment 3035 of ontology 3060 and outer actuating component 3031 in guide portion 3030, example
Such as by including compressed spring between abutment 3035 and component 3031.As a modification, biased element 3033 can be with
The abutment 3035 for being fixed to ontology 3060 in guide portion 3030 is set and is referred between portion 303, such as by abutting part
Part 3035 and refer between portion 303 include drawing spring.Therefore, actuating component 3031 is pressed against ring 305 by biased element 3033
Inner surface 3053 is pressed against its first part 3052 closer to axis A in the first clamped position, from the first clamped position to
Second part 3056 is pressed against in second released position during changing, and is pressed against the bottom of recess portion 3054 in the second released position
3055。
According to one embodiment, the first containment member 310 includes the first dynamic sealing 300, abuts feed through part 3061,
And it can be injected and fluid expands and be activated by the end 302 via base portion 306, to make the in feed through part 3061
A part 311 of one sealing element 300 is pressed against column 27.The dynamic sealing 300 is for example ring-shaped in feed through part, to surround axis
Line A is around column 27.End 302 is connected to by inner fovea part 312 with first seal 300, to allow fluid to be admitted to from end 302
In the sealing element 300.End 302 can be connected to the Outer Tube for being sent into fluid.Pass through the fluid of end 302 from Outer Tube
Injection can fill dynamic sealing 300, and make its deformation, to cause a part 311 of sealing element along centripetal direction (that is, court
To column 27) it is mobile, so that a part 311 of sealing element 300 is supported by column 27, to provide sealing barrier around column.
According to one embodiment, sealing device 30 includes mobile transmission apparatus 3036, in ring 305 and base portion 306 from the
When two relatively rotation places vary to the first relatively rotation place, the second containment member 304 is set to be pressed against the edge 281 of pipe 28, i.e.,
Clamp the edge 281 of pipe 28.
According to one embodiment, the second containment member 304 includes second seal 3040, along the first direction of axis A
The first surface 282 at the edge 281 of A1 steering tube 28, the surface 282 is transverse to axis A, especially perpendicular to axis A.It is mobile
Transmission apparatus 3036 includes the second support surface 3037 in each finger portion 303.Second support surface in each finger portion 303
3037 are used for the second surface 284 of abutting edges 281, which is for example parallel to surface 3037.284 edge of second surface
Axis A far from first surface 282.Second support surface 3037 rises when close to first surface 282, moves away from simultaneously
Axis A.Along the second direction A2 of axis A, (first direction A1's is anti-when second support surface 3037 is advanced from Inside To Outside
To) rise, in finger portion 303, outside-in sliding is when 281 clamped position of first edge in cavity 316, direction
First surface 282 presses second seal 304.Second support surface 3037 for example rises along direction identical with surface 284, should
Surface 284 is, for example, the rear surface 284 for being axially distant from first surface 282 at the edge at edge 281.Therefore, inside from outside
Side movement refers to that portion 303 to reach the first clamped position, can cause second seal 3040 along first party by support surface 3037
To the mobile first surface 282 for tending to edge 281 of A1.In addition, edge 281 includes lateral external surface 283, the lateral external surface example
It is such as parallel to axis A, and is on the one hand connected to surface 282, and is on the other hand connected to surface 284.Finger portion 303 for example including
Further from axis A and it is parallel to another surface 3037b of axis A than its surface 3037, for being supported by lateral external surface 283.
According to one embodiment, at least three finger portions 303 are provided as referring to portion 303, therefore as shown in FIG. 6 with first
28 edge of pipe, 281 clamped position, at least two 303a, 303b are located in the one 180 ° of angle sector SEC1 around axis A, and
At least one 303c is located in the 2nd 180 ° of angle sector SEC2 complementary with the first sector SEC1.Such as three fingers can be set
Portion 303.Of course, it is possible to provide the finger portion 303 of four finger portions 303 or more quantity.
According to one embodiment, refer to that portion 303 is distributed in a manner of isogonism in the first clamped position around axis A.Therefore, three
In the case where a finger portion 303, they can be distributed with 120 degree regularly each other around axis A.Feelings in four finger portions 303
Under condition, they can be distributed each other with 90 degree around axis A.
Sealing device 30 can be used or without using the EIS (lower internal unit) with or without column 27.In fig. 8
In one embodiment, in the case where not using EIS, i.e., the edge 281 that no column 27 still has to be around pipe 28 clamps close
In the case where seal apparatus 30, one or more plugs 3068 can be installed and fixed to base portion 306, for blocking feed through part
3061, as shown in Figure 8.Plug 3068 is for example fixed to upper part 3063 by removable immobilising device 3069, described solid
Determining device can be bolt type or other types.
The invention further relates to a kind of end edge 281 for against pipe 28 and sealing described above is installed against column 27
The method of device 30, the column 27 must pass through the opening 285 of pipe 28 defined by the edge 281, sealing dress along axis A
Setting 30 includes mobile transmission apparatus 3036 described above.
According to this method, during first step, ring 305 and base portion 306 are opposite from second relative to each other around axis A
Rotation position is rotated to the first relatively rotation place (that is, along first clamping direction S1), and base portion 306 is clamped against to the side of pipe 28
On edge 281, and the second containment member 304 is pressed against on the edge 281 of pipe 28.
Then, during second step, the first containment member 310 is enabled, to press it against in feed through part 3061
Column 27 on.
Sealing device 30 according to the present invention and the method according to the present invention for installing it are used around pipe 28
The edge 281 of (covering 3 of its container 1 for being fixed to nuclear reactor, as shown in figs. 1 and 2) and heat around the container 1
Galvanic couple column 27 is fixed and realizes sealing on it.
Above, the edge 281 that sealing device according to the present invention must be fixed to can be flange 40, and flange 40 is certainly
Body is soldered to pipe 28, its own is soldered to covering 3, flange 40 and pipe 28 and passes through them for column 27, as shown in Figure 9, flange
40 include part 281,282,283,284 and 285 described above.Pipe 28 can be adapter tube 28, be adapted to allow for column 27 close
Envelope exits, and the mobile probe 26 with thermocouple is located in the column.
It therefore, can be as using the vacuum of the container 1 of the nuclear reactor of sealing device 30 according to the present invention
Under.
When taking out Special seal system, when covering 3 is still on container 1 after the stopping of nuclear power station unit, pass through phase
For along first direction S1 rotating base 306 and ring 306, sealing device 30 is placed and is locked in the first clamped position each other
The edge 281 of pipe 28.
Then, covering 3 is removed relative to container 1, and the covering 3 is placed on one side.
In another embodiment, which can be identical, can after covering is placed on one side
Complete installation and locking.
Then, the interface of pressure fluid tubes is arranged on the end 302 of device 30.
Then, covering 3 is put back on the sealing plane 10 of container 1, to start vacuum pumping, which is equipped with
There is the pipeline for injecting the fluid being under pressure.
Then, from the vacuuming action of the console instructions pipeline of distal end, so that dynamic sealing 300 expands and ensures to enclose
It realizes and seals around column 27.
Hereafter, time of repose is provided to observe the pressure of the sign for the failure that will be leakage or dynamic sealing 300
Any deviation.
Then, it executes and vacuumizes and fill as described above major loop process.
At the end of this vacuumizes and fill major loop process, the vacuum of major loop is destroyed, and considers to be restored to big
Air pressure, dynamic sealing 300 are remotely operated to be unclamped by discharging compression fluid.
Then, in order to guarantee the complete release of column 27, slight depression is generated in dynamic sealing 300.
Then, the covering 3 including device 30 mounted thereto is placed on one side, and the dress of core can be started
It carries.
Then flow in pipes is removed from end 302.
Then, opposite in the second released position by S2 in a second direction rotating base 306 and ring 306 relative to each other
Sealing device 30 is unlocked in the edge of pipe 28 281.Then device 30 is removed relative to pipe 28 and column 27.
It is then possible to which the covering of no device 30 is reinstalled on the sealing plane 10 of container 1.
The present invention helps to improve current situation, specifically, it will be reduced to not to the exposure duration of ionising radiation
By one minute.It allows by saving the time in critical path and hiding and being operated in the time.This is by allowing to omit
The support frame at the bottom in the pond of container 1 is generally arranged in the prior art to alleviate environmental system and therefore reduce
The cost of operator.
Main application of the invention is in scene described above referring to Figures 1 and 2, to pass around covering for container 1
The thermocouple pile 27 of cover piece 3 realizes sealing, to realize vacuumizing for major loop after filling loop.
Second purposes of the invention includes using sealing device 30 as protection sealing surfaces.In fact, these enclosed watches
Face is very sensitive, and their reparations that may be present are proved to be very intractable.
The present invention allows reduction personnel to be exposed to the time of ionising radiation, (supports especially by the bottom reduced in pond
Frame component, container work operator) total time for spending and obtain the gain (estimated value) that vacuumizes of about 3.5mSv/.
The present invention allows the intervention time of reduction personnel, especially by the reliability and peace for improving the sealing around column 27
Quan Xing, it hiding time installation tool, obtaining the 45 minutes about 3 hours/gain that vacuumizes.
The present invention allows to improve safety, passes through support frame close to 3 (this of covering especially by the bottom eliminated in pond
Can generate and fall risk) necessity, and exempt installation support frame (manual operation).
Claims (13)
1. a kind of sealing device (30) is intended to fix against the end edge (281) of pipe (28) and against column (27), described
Column must pass through the opening (285) defined by the edge (281) in the pipe (28) along the axis (A) of the column, described
Device includes: base portion (306), have for the column (27) axially through feed through part (3061)；First containment member
(310), the column (27) to be pressed against in the feed through part (3061) can be activated；Ontology (3060), surrounds
The axis (A) is around the cavity (316) for receiving the edge (281) of the pipe (28)；And second containment member
(304), the edge (281) for the pipe (28) for being intended to be pressed against in the cavity (316), the feed through part (3061) with
The cavity (316) along axial connection,
It is characterized in that,
The base portion (306) include define the feed through part (3061) and connect with the ontology (3060) or fixation or at single-piece
Upper part (3063),
Described device (30) further includes concentric clamping ring (305), and the ontology (3060) includes multiple guide portions (3030),
They are distributed around the cavity (316), and the inside (3064) that open in the cavity (316) and against it is described together
Heart clamping ring (305) extends between open outside (3062), and the concentric clamping ring surrounds institute relative to the base portion (306)
Axis (A) is stated to be rotatably mounted,
Multiple inner fingers (303), integrally with multiple outer actuating components (3031), the multiple outer actuating component surrounds respectively
The cavity (316) is guided in the multiple guide portion (3030), and the concentric clamping ring (305) includes multiple activation zones
(3051), the multiple activation zone is separated from each other, and can bear against the multiple outer actuating component (3031) positioning, with
Cause the inner finger (303) to slide and protrude into the cavity (316), in the concentric clamping ring (305) and the base
When first relatively rotation place of (28) edge (281) clamped position is managed in referred to as first relative to each other by portion (306), support
Edge (281) by the pipe (28) clamps the inner finger (303),
The concentric clamping ring (305) and the base portion (306) can be by rotating relative to each other around the axis (A)
It is changed between one in first relatively rotation place and the second relatively rotation place and another, described second is opposite
Rotation position, which is referred to as, manages (28) edge (281) released position, multiple activation zones (3051) described herein and the multiple outer
Actuating component (3031) is separated by a certain distance, to allow the inner finger (303) to be retracted into the ontology (3060).
2. sealing device according to claim 1, which is characterized in that the multiple guide portion (3030) is relative to the axis
Line (A) radially extends, radially to guide the inner finger (303) relative to the axis (A).
3. sealing device according to claim 1, which is characterized in that the base portion (306) and/or the ontology (3060)
Integrally at least one first in command (314), and the concentric clamping ring (305) and at least one second handle (301)
Integrally.
4. sealing device according to claim 1, which is characterized in that the base portion (306) includes for will be described concentric
Clamping ring (305) and the ontology (3060) are locked in the locking piece (307) of their the first relatively rotation place, the locking
Part (307) is connected to manual actuator part (3070), and the manual actuator part allows the locking piece (307) to be unlocked, with
Permission is changed from first relatively rotation place to second relatively rotation place.
5. sealing device according to claim 1, which is characterized in that the multiple activation zone (3051) respectively includes described
The multiple portions (3052) of the inner surface (3053) of concentric clamping ring (305), the multiple part pass through the inner surface (3053)
Multiple recess portions (3054) be separated from each other around the axis (A), part (3052) of the multiple recess portion than the inner surface
Further from axis (A), and the multiple recess portion is respectively used to receive the multiple outer cause in second relatively rotation place
Dynamic component (3031).
6. sealing device according to claim 5, which is characterized in that each recess portion (3054) has the first inclined-plane, begins
In the part (3052) of the inner surface (3053) of the concentric clamping ring (305), and extend outwardly away from the axis (A) until
The bottom (3055) of the recess portion (3054), to be retracted into the guide portion (3030) in first relatively rotation place
First position and one in the second position that second relatively rotation place protrudes into the bottom (3055) with it is another
The outer actuating component (3031) is guided between one.
7. sealing device according to claim 6, which is characterized in that each outer actuating component (3031) includes cam
(3032), the cam has the second inclined-plane, and second inclined-plane turns to the concentric clamping ring (305) and edge and described first
The identical direction in inclined-plane rises.
8. sealing device described in any one of -7 according to claim 1, which is characterized in that each guide portion (3030) includes using
The outer actuating component (3031) described in bias is with the biased element (3033) mobile towards the concentric clamping ring (305).
9. sealing device described in any one of -7 according to claim 1, which is characterized in that first containment member (310)
Including the first dynamic sealing (300), the adjacent feed through part (3061) of first dynamic sealing, and can pass through through
It is expanded by end (302) the injection fluid of the base portion (306) and is activated, so that first dynamic sealing
(300) a part (311) is pressed against the column (27) in the feed through part (3061).
10. sealing device described in any one of -7 according to claim 1, which is characterized in that it includes mobile transmission apparatus, is used
It is changed from second relatively rotation place to first phase in the concentric clamping ring (305) and the base portion (306)
When to rotation position, second containment member (304) is made to be pressed against the edge (281) of the pipe (28)
Second containment member (304) includes second seal (3040), the second seal along the axis (A)
One direction (A1) turns to the first surface (282) at the edge (281) of the pipe (28),
The mobile transmission apparatus (3036) includes second for abutting the edge (281) on each inner finger (303)
Second support surface (3037) on surface (284), the second surface is separated along axial with the first surface (282), described
Second support surface (3037) rises along the second direction (A2) opposite with the first direction (A1), and from Inside To Outside
Extend, in the inner finger (303), outside-in is slided until the first tube edges (281) in the cavity (316)
When clamped position, the second seal (3040) is pressed towards the first surface (282).
11. sealing device described in any one of -7 according to claim 1, which is characterized in that at least three inner fingers are provided,
Wherein in described first pipe (28) edge (281) clamped position, at least two inner fingers are located in first around the axis (A)
In the sector of 180 ° of angles, and wherein at least another inner finger is located in the two 180 ° angle fan complementary with the one 180 ° of angle sector
Qu Zhong.
12. sealing device described in any one of -7 according to claim 1, which is characterized in that it includes at least one plug
(3068) removable immobilising device (3069), the plug (3068) in feed through part (3061) not have column (27)
In the case of block the feed through part (3061).
13. one kind is installed for the end edge (281) against pipe (28) and against column (27) according in preceding claims
The method of described in any item sealing devices, the column must pass through in the pipe (28) along the axis (A) of the column (27)
The opening (285) defined by the edge (281), the sealing device includes mobile transmission apparatus (3036), for described
When concentric clamping ring (305) and the base portion (306) vary to the first relatively rotation place from the second relatively rotation place, make institute
State the edge (281) that the second containment member (304) are pressed against the pipe (28), on the edge (281) to clamp against the pipe (28),
The concentric clamping ring (305) and the base portion (306) are opposite from described second around the axis (A) relative to each other
Rotation position rotates to first relatively rotation place, and the base portion (306) is clamped against to the edge of the pipe (28)
(281) on, and second containment member (304) is pressed against on the edge (281) of the pipe (28),
Then first containment member (310) is enabled, it is pressed against the column in the feed through part (3061)
(27) on.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1561211 | 2015-11-20 | ||
| FR1561211A FR3044068B1 (en) | 2015-11-20 | 2015-11-20 | DEVICE FOR SEALING BETWEEN A TUBE AND A COLUMN THROUGH THE SAME, ITS MOUNTING METHOD |
| PCT/EP2016/078070 WO2017085221A1 (en) | 2015-11-20 | 2016-11-17 | Sealing device between a tube and a column passing through the latter, method for mounting same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108291680A CN108291680A (en) | 2018-07-17 |
| CN108291680B true CN108291680B (en) | 2019-08-16 |
Family
ID=55411517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680067218.6A Active CN108291680B (en) | 2015-11-20 | 2016-11-17 | Pipe and the sealing device across the column of the pipe and the method for installing it |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US10692614B2 (en) |
| EP (1) | EP3377795B1 (en) |
| CN (1) | CN108291680B (en) |
| ES (1) | ES2730176T3 (en) |
| FR (1) | FR3044068B1 (en) |
| WO (1) | WO2017085221A1 (en) |
| ZA (1) | ZA201802935B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3053515B1 (en) * | 2016-06-29 | 2018-08-17 | Areva Np | NUCLEAR REACTOR, METHODS FOR MOUNTING AND REPLACING THERMOCOUPLES CONDUITS, ASSEMBLY FOR IMPLEMENTING METHODS |
| CN109564787B (en) * | 2016-12-29 | 2023-05-16 | 原子能技术科学研究设计院股份公司 | Sealed inner shell isolation system of nuclear power plant containment |
| CN109973738B (en) * | 2019-03-12 | 2021-02-19 | 宝鸡石油机械有限责任公司 | High pressure manifold is with soon connecting device of knob type |
| CN110319288B (en) * | 2019-07-03 | 2021-01-29 | 民勤县陇宇机械制造有限公司 | Self-propelled agricultural machine for irrigation prevents breaking device |
| CN113187980B (en) * | 2021-05-17 | 2022-04-01 | 盐城市崇达石化机械有限公司 | High-pressure movable elbow structure convenient to disassemble and assemble |
| CN114894232B (en) * | 2022-03-10 | 2024-04-19 | 上海索迪龙自动化股份有限公司 | Infrared photoelectric sensor convenient to installation |
| CN115777493B (en) * | 2022-11-26 | 2023-08-04 | 黑龙江北大荒农业股份有限公司友谊分公司 | Intelligent paddy field irrigation system and method |
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- 2016-11-17 EP EP16802002.2A patent/EP3377795B1/en active Active
- 2016-11-17 CN CN201680067218.6A patent/CN108291680B/en active Active
- 2016-11-17 ES ES16802002T patent/ES2730176T3/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| US10692614B2 (en) | 2020-06-23 |
| EP3377795A1 (en) | 2018-09-26 |
| ES2730176T3 (en) | 2019-11-08 |
| US20190341159A1 (en) | 2019-11-07 |
| EP3377795B1 (en) | 2019-03-20 |
| CN108291680A (en) | 2018-07-17 |
| FR3044068A1 (en) | 2017-05-26 |
| WO2017085221A1 (en) | 2017-05-26 |
| FR3044068B1 (en) | 2017-12-22 |
| ZA201802935B (en) | 2019-02-27 |
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